GM A platform

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The General Motors A platform (commonly called A-body) was a mid-size car automobile platform. The A-bodies evolved from rear wheel drive compact cars to front wheel drive mid-size cars over the course of 32 years. The switch in drive layout in 1982 spawned the G-body. In the end, every A-body car line was cancelled, but new nameplates on the GM Epsilon platform have taken their place.